1. ALLSOP , R. E. , BANISTER , D. J. , HOLDEN , D. J. , BIRD , J. and DOWNE , H. E. , 1986 , A methodology for assessing social considerations of transport of low and intermediate level radioactive waste , Department of the Environment Report, DoE/RW/86-020 .
2. BRAINARD , J. S. , LOVETT , A. A. and PARFITT , J. P. , 1993 , GTS as a risk assessment tool for aqueous waste transport . InEG IS ‘93: Proceedings of the Fourth European Conference and Exhibition on Geographical Information Systems( Utrecht : EGIS Foundation ), pp. 391 – 400 .
3. DAILY TELEGRAPH , 1990 ,Danger Chemical Crash Closes Ml, 24 October , 1990 .